Optical Illusion Requires You To Shake Your Head To Uncover Its Hidden Animal

Nanotech engineer Dr Michelle Dickinson has shared a brainteaser to Twitter that requires more effort to uncover its hidden animal than by merely squinting your eyes.

The tweeted image, which shows black and white stripes, came with the caption, “You can only see this optical illusion if you shake your head (I’m serious).”

Those interested in tackling the illusion can start by shaking their heads. The silhouette of a cat should then gradually appear. Alternatively, you can try moving the image back and forth to avoid getting a headache. Another suggestion is to zoom out the photo instead. Some internet users actually managed to see the illusion without shaking their heads. A Twitter user shook his phone instead of his head to view the image of the cat.